| 460矿床富矿形成中的叠加成矿作用 |
| |
| 引用本文： | 周德安.460矿床富矿形成中的叠加成矿作用[J].铀矿地质,1988(3). |
| |
| 作者姓名： | 周德安 |
| |
| 摘 要： | 460矿床不但具有相当的规模,而且有一定储量的富矿石。矿床内部铀品位变化大,有中深部和浅部两个高品位矿石聚集区。决定460矿床富矿形成和定位的主要地质因素是:经过两次预富集作用构成的高铀区城地质背景;由多组断裂构造和火山构造交切及矿前水云母化提供的成矿通道和储矿条件;具有燕山晚期和喜山期发生的热液蚀变成矿作用的相互叠加;矿后只遭到浅度剥蚀,具有良好的保矿条件。
|
| 关 键 词： | 富矿 叠加成矿 |
THE SUPERIMPOSED METALLOGENESIS IN THE FORMATION OF RICH ORES IN URANIUM DEPOSIT NO. 460 |
| |
| Zhou Dean.THE SUPERIMPOSED METALLOGENESIS IN THE FORMATION OF RICH ORES IN URANIUM DEPOSIT NO. 460[J].Uranium Geology,1988(3). |
| |
| Authors: | Zhou Dean |
| |
| Abstract: | Uranium deposit No. 460 possesses not only considerable size, but also rich ores with a certain reserves. In this deposit the grade of uranium varies widely. There are two rich ores accumulation areas with high grade of uranium in the middle-depth and shallow parts of the deposit. The main geological factors for the formation and localization of rich ores in uranium deposit No. 460 are the regional geological setting with high uranium content which resulted from two preconcentrations; the intersection of multiple sets of faulted structures with volcanic structures as well as mineralizing channel and the ore preservation conditions provided by the pre-ore hydromicazation; the mutual superposition of mineralization by hydrothermal alteration occurring during the late Yanshanian and Himalayan movements and only suffering from slight denudation and having fine conditions of ore preservation after mineralization. |
| |
| Keywords: | Rich ores Superimposed metallogenesis |
| 本文献已被 CNKI 等数据库收录！ |
